Double-heating combination boiler



June 312, 1923. 1,458,135

M. B. KATO DOUBLE HEATING COMBINATION BOILER Filed Feb. 16 1921 3 Sheets-Sheet 1 June 12, 1923.

M. B. KATO DOUBLE HEATING COMBINATION BOILER 1.6 1921 3 Sheets-Sheet 2 Filed Feb.

attoz new Kill Patented dime l2,- l do entree snares.

MICHAEL R. KATO, OF DUQUESNJE, PENNSYLVANIA.

DGUBLE-HEATING COMBINATION BOEL'ER.

Application filed Eebruary 18, 1921.

To all whom it may concern:

Be it known that 1,.MICHAEL B. KATO, a citizen of the United States, residing at Duquesne, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Double-Heating Combination Boilers, of which the following is a specification.

My object is to provide a construction and combination which will utilize as far as possible, the heat from the burner for quickly generating water into steam and reheating said steam in the coils previous to its exit from said coils into a pipe that carries the said steam orjhot water to its determined place of usage.

A further object isto provide a combination boiler which with very little alternation is converted into a double heating hot water boiler adapted for domestic use.

A. further object is to provide a construction, the members of which are so arranged as to reduce to a minimum theiioreign resistance to expansion of said members from the-heat.

A further object is to rovide a double heating combination boilr, wherein the volume of coils are reduced, thereby reducing the distance of travel of steam or hot Water within said double heating combination boiler, thereby reducing the friction travel of steam or hot waterwithin said apparatusto a minimum.

A further object is to provide a second outlet from the boiler into the pipe coils to increase the supply of heated fluid from the boiler into the coils, it so desired.

My invention also consists in certain other novel construction and combination and arrangements of parts, as will be hereinafter more fully described.

In the accompanying drawings, illustrating my invention Figure l is a vertical section of one form of my invention;

Fig. 2 is a horizontal section on line 22 of Fig. l; I

Fig. 3 is a horizontal section on line 3+3 of Fig. l; and

Fig. 4C is a vertical section of another form of the invention, partly in elevation.

Like numerals designate like parts in each of the several views.

Referring to the drawings, 1 provide a jacket 1 having a suitable door 2. Jacket 1 is provided with suitable annular flanges Serial No. 445,523.

15 on which a series of pipe coils 13 are suitably mounted in a compact manner so as to form a truncated conoid or circular ridged surface surrounding the upper half of the sphere part of the spheroidal boiler 3, but in spaced relation to said boiler 3, asshown in the drawings.

Portion 12 of the cap coils encircles the cap-coupling 5, which is screwed on the neck a of the boiler 3.. The intake end of plpe coil 12 opens into a conduit or pipe 11, which is connected by a suitable union 10, with a short pipe 9, which extends through the cap-coupling 5, and opens intw the neck 4 of the boiler 3.

I further provide a separateconduit or pipe 6, extending into and through capcoupling 5, and through the neck of the boiler 3, down half the distance or more into the boiler 3, and having openings 7 at its lower end for the discharge of water into the boiler 3.

I provide a cylindrical cap coupling 5, having in one and three openings or holes extendin in towards the opposite end in said cap coup ing 5, opening into one large cylindrical opening in said opposite end of said cap coupling 5, as illustrated in the drawings.

into and through the three holes in capcoupling 5' are screwed the three pipes or conduits 8, 9 and 6, respectively. Pipe 6 is extended downward through the capcoupling 5 into the boiler 3., said pipe 6 being a conduit for water which is to be discharged at its lower end opening '7 into boiler 3, said waterthereby coming in contact with the inside hea ed surface of: boiler 3.

I provide a sleeve 16, but in spaced relation to the cap-coupling 5 or neck a of the boiler 3, said sleeve 16 surrounding the pipe coils 12, as shown.

It also provide a suitable covering 17 of asbestos or other non-heat conducting material on the outside surfaces of the sleeve 16 and coils l3, and extending down on the outside surface of jacket 1, as shown in the drawings, even with or a little lower than the base of the hoiler it provide a suitable conventional htirner (not shown).

The several. pipes referably and screwed into cap-conpling 5,

boiler 3.

coupling 5 being screwed on neclr Ll in operation, the heat from the burner passes upwards, thereby impinging first against the lower half-of the outside surface of the boiler 3. Then said heatpasses gradually upwards through the space which is formed between the boiler 3 and the own cated conoid gradually inclined circular rigid surface, which is formed by coils 13, and onup through the space between sleeve 16 and cap-coupling 5 or neck 4: of the boiler 3, the coils 13, in conjunction with boiler 3, forming the above-described'shaped passageway for the heat to pass through.

The heat is therefore utilized in a most efficient manner for heating water in the boiler 3, and re-heating same in coils 13 and 12, or for converting water into steam in boiler 3, and re-heatingsame in coils 13 and 12.

The starting point of flow of hot water or steam towards its determined place of passage, or towards the point of termination, that is at the discharging end of coil 14, begins in boiler 3, travels up through the space surrounding pipe 6 in neck 4!, of the boiler 3, then into a conduit or pipe 9, by which means it is directed into pipe 11, said pipes or conduits 9 and 11 being connected by a suitable union 10.

By means of pipe 11 it is carried into the receiving end of coils 12, traveling in said coils in a gradual downward gradually outwardly extending circle in coils 13, towards or to the discharging end 1 1 of the pipe coils 13, said end 14: being bent outwardly and.

protruding out through the side ofthe acket 1 an asbestos covering 17.

It will alsobe noticed that the cap-coupling 5 is adapted to hold the three pipes or conduits, 8, 9 and 6, respectively,rigidly in their ositions, as. shown.

In ig. 1 my apparatus, as is shown, is adapted for steam production. Therefore the boiler 3 and coils 12 and 13, in conjunc-. tion with one another, act as a steam reservoir, capable of holding alarge volume of steam, said steam' beingconverted from a veiy small amount of water on the order of a ash. Therefore there is no fixed water level, Jacket 1 functions to support the pipe coils 13, and to retain the heat, in con junction with coils 13 and sleeve 16.

Referring to Fig. 1, there is illustrated a modified form of the invention. adapted for the purpose of producing hot water'readily in sufficient quantity for domestic use. This form of the boiler has a stem 18 at the bottom, connected by a suitable union 19 with the pipe line 6, for the inflow of water through the channel 7. In this form of my invention members 6 and 8 are eliminated. Cap-coupling 5 is also altered in construction, as shown in Fig. 4.

The boiler 3 and coils 13 and 12 and all pipes are always full of water to their re 1. In an apparatus of the class described,

the combination of a boiler, a series of pipe coils, a conduit for the supply of water directly into the "boiler, a second conduit for the discharge of steam or hot. water from the boiler into a series of. pipe coils, the major portion of said coils being in a compact relation to one another, and forming a truncated conoid or cone shaped series of pipe coils gradually expanded downward to form a circular ridged wall around the upper half of ,said boiler but in a spaced relation to said boiler, a cylindricaLcap-coupling to function as a means by which the boiler and conduits are connected onto one another and securely held in position by same, and a jacket supporting the aforesaid pipe coils and functioning in conjunction with the pipe coils to retain the heat used in heating the boiler and coils.

2. In an apparatus of the class described in claim 1, the combinationof a bulb, or spheroidal shaped boiler, a cylindrical capcoupling having three channels through one end. and opening into a large cylindrical opening towards the opposite end in said cap-coupling, a conduit opening into the boiler to discharge water directly into said boiler, a series of pipe coils encircling the outer surface of the upper half of the sphere part of the boiler, but in Spaced relation to said boiler, said series of coils being arranged close together and supported in their determined shape, a sleeve encircling the capcoupling, or the neck of the boiler but in spaced relation thereto, a jacket supporting the pipe coils by means of a number of small annular flanges, said jacket and flanges being in spaced relation to said boiler, said jacket functioning to retain the heat supply to the boiler, and to direct same through the annular passage between the pipe coils and the outer surface of the boiler, and inside of sleeve above the boiler, and a discharge pipe in which the intake end of the pipe coils terminates.

3. In combination with the apparatus described in claim 2, a non-heat conducting covering m'ountedon a series of pipe coils and on theoutside surface of the jacket, and V gamma non-heat cmdluctimg caverimg @xfismolimg imm the jacke; m m a little h luw sh'ebsass of the mile? 011 up near 1&0 33h uppsr and ()1? she skew about @318 cap-sampling or neck m? flu'he ba el.

mmbimmim with @hs apparatus d4? scribed in claim 2, a nan-3mm madam-mg covermg moummad an a serves w pipe (212 115 and on the eutsidla surface @i the and on @he @umidm swims 0f the shew, about bhe cap-sampling 0? mm an? 3213193 said nnmhmfn @mnducfing ramming amending Emma the jack@@ air, 0K. a Hiiciiie bemw this bum- 2 of the boiler m up 11%? #50 m and @f m shave; abaut m" @f the Milan .XAEBL "*MAQ 

